# KDB.AI vs Weaviate

**Leader by vioscaleAI score:** Weaviate

| Attribute | KDB.AI | Weaviate |
|---|---|---|
| **vioscaleAI score** | 47.1 (24% (low)) | 62.5 (73% (medium)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 15 |
| adoption.github_stars | - | 16,862 |
| content.faq | `[{"answer":"A vector database for contextual and time series search that enables building AI apps, finding patterns in data, and mixing structured with unstructured data. It is indexed under Vector Databases.","source":"https://kdb.ai","question":"What is KDB.AI?","confidence":0.6},{"answer":"KDB.AI offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://kdb.ai","question":"Is KDB.AI free?","confidence":0.6},{"answer":"Yes. KDB.AI can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://kdb.ai","question":"Can KDB.AI be self-hosted?","confidence":0.6},{"answer":"We have confirmed 7 integrations for KDB.AI, including Hugging Face, NVIDIA cuVS, LlamaIndex, Langchain, Voyage AI, TwelveLabs and Google Colab. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://kdb.ai","question":"What does KDB.AI integrate with?","confidence":0.6}]` | `[{"answer":"Weaviate is an open-source vector database that supports hybrid search, metadata filtering, and scalable deployments. It enables developers to build AI applications with semantic search capabilities. It is indexed under Vector Databases.","source":"https://weaviate.io/blog/weaviate-cloud-pricing-update","question":"What is Weaviate?","confidence":0.6},{"answer":"Weaviate offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://weaviate.io","question":"Is Weaviate free?","confidence":0.6},{"answer":"Weaviate supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://weaviate.io","question":"What platforms does Weaviate support?","confidence":0.6},{"answer":"Yes. Weaviate can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://weaviate.io/blog/weaviate-cloud-pricing-update","question":"Can Weaviate be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for Weaviate. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Weaviate not holding them. Always confirm compliance directly before you rely on it.","source":"https://weaviate.io","question":"What security certifications does Weaviate have?","confidence":0.48},{"answer":"Yes. Weaviate is published under the BSD-3-Clause licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/weaviate/weaviate","question":"Is Weaviate open source?","confidence":0.95},{"answer":"Weaviate is available worldwide. The vendor is headquartered in the Netherlands.","source":"https://weaviate.io","question":"Where is Weaviate available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true,"on_prem":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | KDB.AI is a specialized vector database enabling developers to build AI-powered applications by integrating vector embeddings with structured time-series data. It supports hybrid search, multimodal retrieval, and real-time analytics for generative AI and RAG applications. | A vector database that enables semantic search by storing both objects and vectors, with built-in support for combining vector similarity search with traditional keyword search, retrieval-augmented generation, and reranking capabilities. |
| features.capabilities | `{"ann_index":"Flat, qFlat, IVF, IVFPQ, HNSW, qHnsw","deployment":"managed","quantization":"product","storage_tier":"disk_backed","hybrid_search":true,"multi_tenancy":true,"product_class":"dedicated_dbms","full_text_bm25":true,"distance_metrics":"Euclidean, Inner-Product, Cosine","horizontal_scale":"sharded_distributed","metadata_filtering":"pre_filter"}` | `{"ann_index":"HNSW","deployment":"self_hosted","consistency":"tunable","quantization":"product","hybrid_search":true,"licence_class":"permissive_oss","multi_tenancy":true,"product_class":"dedicated_dbms","full_text_bm25":true,"horizontal_scale":"sharded_distributed"}` |
| integrations.count | 5 | 25 |
| integrations.list | `[{"name":"Hugging Face"},{"name":"NVIDIA cuVS"},{"name":"LlamaIndex"},{"name":"Langchain"},{"name":"Voyage AI"},{"name":"TwelveLabs"},{"name":"Google Colab"},{"name":"HuggingFace"}]` | - |
| language.primary | - | Go |
| license.spdx | - | BSD-3-Clause |
| market.availability | - | `{"hqCountry":"NL","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | - | `{"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free","contactSales":false}],"summary":"Free tier available; enterprise pricing via contact sales","freeTier":true,"sourceUrl":"https://kdb.ai","retrievedAt":"2026-08-03T13:11:39.515Z"}` | `{"type":"hybrid","freeTier":true,"sourceUrl":"https://weaviate.io","retrievedAt":"2026-08-05T13:28:29.566Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | low | low |
| pricing.transparent | no | no |
| release.cadence_days | - | 1 |
| release.history | - | `[{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.39.8","date":"2026-10-01T18:18:57Z","type":"stable","version":"v1.39.8"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.38.18","date":"2026-10-01T14:55:17Z","type":"stable","version":"v1.38.18"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.40.0-rc.2","date":"2026-09-30T20:12:35Z","type":"prerelease","version":"v1.40.0-rc.2"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.39.7","date":"2026-09-25T13:18:52Z","type":"stable","version":"v1.39.7"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.39.6","date":"2026-09-22T14:55:53Z","type":"stable","version":"v1.39.6"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.38.17","date":"2026-09-22T12:47:57Z","type":"stable","version":"v1.38.17"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.40.0-rc.1","date":"2026-09-19T16:20:42Z","type":"prerelease","version":"v1.40.0-rc.1"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.38.16","date":"2026-09-18T12:38:55Z","type":"stable","version":"v1.38.16"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.40.0-rc.0","date":"2026-09-15T20:18:04Z","type":"prerelease","version":"v1.40.0-rc.0"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.39.5","date":"2026-09-15T08:24:52Z","type":"stable","version":"v1.39.5"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.38.15","date":"2026-09-14T19:02:47Z","type":"stable","version":"v1.38.15"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.37.17","date":"2026-09-14T18:05:08Z","type":"stable","version":"v1.37.17"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.39.4","date":"2026-09-11T17:51:37Z","type":"stable","version":"v1.39.4"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.39.3","date":"2026-09-07T13:49:58Z","type":"stable","version":"v1.39.3"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.38.14","date":"2026-09-07T12:19:29Z","type":"stable","version":"v1.38.14"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.37.16","date":"2026-09-07T12:56:10Z","type":"stable","version":"v1.37.16"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.38.13","date":"2026-08-27T10:13:43Z","type":"stable","version":"v1.38.13"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.37.15","date":"2026-08-27T06:41:32Z","type":"stable","version":"v1.37.15"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.39.2","date":"2026-08-26T17:21:38Z","type":"stable","version":"v1.39.2"},{"url":"https://github.com/weaviate/weaviate/releases/tag/v1.38.12","date":"2026-08-25T12:21:22Z","type":"stable","version":"v1.38.12"}]` |
| reliability.sla_pct | - | 99.95 |
| reliability.status_page | - | yes |
| security.disclosure_policy | yes | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | - | 6.7 |
| security.soc2 | - | yes |
| security.trust_center | - | https://weaviate.io/blog/tags/security |
| security.vulnerabilities | - | `{"count":5,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fweaviate%2Fweaviate&per_page=100","last_12m":3,"max_severity":"HIGH"}` |

## Capabilities (Vector Databases)

| Capability | KDB.AI | Weaviate |
|---|:--:|:--:|
| **Deployment** |  |  |
| Deployment | Managed | Self-hosted |
| Serverless / consumption pricing | - | - |
| **Index** |  |  |
| ANN index (HNSW / IVF / DiskANN / ScaNN / flat) | Flat, qFlat, IVF, IVFPQ, HNSW, qHnsw | HNSW |
| Distance metrics (cosine / dot / Euclidean) | Euclidean, Inner-Product, Cosine | - |
| **Query** |  |  |
| Metadata filtering | Pre-filter | - |
| Hybrid search (dense + sparse fusion) | ✓ | ✓ |
| Built-in BM25 / lexical | ✓ | ✓ |
| **Storage** |  |  |
| Quantization | Product | Product |
| On-disk vs in-memory | Disk-backed | - |
| **Scale** |  |  |
| Multi-tenancy (namespaces / collections / tenants) | ✓ | ✓ |
| Horizontal scale | Sharded / distributed | Sharded / distributed |
| **Consistency** |  |  |
| Consistency | - | Tunable |
| **Licensing** |  |  |
| Licence class | - | Permissive OSS |
| **Classification** |  |  |
| Purpose-built vs feature-of-parent | Dedicated DBMS | Dedicated DBMS |

*Source: vioscaleAI. Generated 2026-10-16T20:59:44.663Z. "-" = undocumented, not absent.*